- sales@blundellpipes.co.nz
- Hamilton, New Zealand
Home > Duplex Steel > Duplex Steel ERW Pipes
From the heart of Hamilton, New Zealand, Blundell Pipes and Tubes has built a strong reputation for dependable supply and manufacturing excellence. Our focus is on providing robust solutions for demanding industries, and a key part of that offering is our Duplex Steel ERW Pipe. We understand that your projects require materials that can perform under pressure, which is why we take pride in delivering pipe that combines exceptional strength with superior corrosion resistance, ensuring longevity and reliability in even the most challenging environments.
The strength of Duplex Steel lies in its unique composition, a balanced mix of chromium, nickel, molybdenum, and nitrogen. This blend gives the ERW pipe its signature dual-phase microstructure, which translates directly into impressive mechanical properties. You get a material that is significantly stronger than standard stainless steels, with yield strengths often double that of 304 or 316 grades. This high strength is perfectly paired with excellent toughness and a proven resistance to stress corrosion cracking, making it a durable choice.
| Specifications | ASTM A790 / ASME SA790 |
| Sizes | 8″ NB to 24″ NB |
| Wall Thickness | 0.5 to 150mm Thick |
| Schedule | SCH 5S, 10S,10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS |
| Length | Single Random, Double Random & Required Length |
| Form | Round, Square, Rectangular, Hydraulic Pipes |
| Type | Electric Resistance Welded |
| End | Plain end, Bevelled end |
| Length | Single Random, Double Random & Cut Length |
| Material | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Duplex Steel | 0.05 max | 1.00 max | 1.00 max | 0.030 max | 0.010 max | 24.00 – 26.00 | 3.00 – 4.00 | 6.00 – 8.00 | 0.20 – 0.30 | 57.61 min |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | UNS | WERKSTOFF NR. |
| Duplex 2205/ S31803 | S31803 | 1.4462 |
Choosing Duplex Steel ERW Pipes from Blundell Pipes and Tubes ensures high quality and durability, as these pipes offer excellent corrosion resistance and strength. Our commitment to exceptional service and reliable delivery guarantees customer satisfaction across various industrial applications. Our expertise in stainless steel products ensures you receive a top-tier solution tailored to your needs.
Blundell Pipes and Tubes, one of the largest suppliers of Duplex Steel ERW Pipes in Hamilton, New Zealand, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
Yes, we offer custom sizes for Duplex Steel ERW Pipes to meet your specific requirements. Our team at Blundell Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@blundellpipes.co.nz.
Duplex Steel ERW Pipes find extensive use across various industries where durability and corrosion resistance are crucial. In chemical and petrochemical plants, they safely transport acids, alkalis, and other corrosive fluids. The oil and gas industry relies on them for pipelines, heat exchangers, and process equipment that are exposed to seawater and aggressive chemicals. Power generation facilities utilize them in boilers, condensers, and high-temperature systems, while marine applications include offshore structures and seawater handling systems. Their reliability, versatility, and ability to perform under extreme conditions make them a go-to choice for many industrial applications.
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